In this unit students will acquire advanced theoretical knowledge, practical and critical analytical skills which can be applied to the investigation and resolution of complex problem solving scenarios inherent in communication systems. The unit material has been developed to enhance students' communication skills, individual and group project participation and other professional capabilities important to practice as an Engineer. In order to enhance and extend specialist knowledge required in the discipline of electrical and electronic communication system, this unit provides an overview of Telecommunication systems and introduces information theory. In addition this unit reviews analysis techniques such as Fourier series, properties and transforms applicable to signals in a given communication link. The unit explores power and energy signals, power spectral density, auto and cross-correlation analysis outcomes that modern network designers need to use in practical applications. These are followed by a review of Modulation Techniques commonly used in many telecommunication scenarios.